diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-10 20:34:10 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-10 20:34:10 +0000 |
commit | e4ba6dbc3f1e76890b22773807ea37fe8fa2b1bc (patch) | |
tree | 68cb5ef9081156392f1dd62a00c6ccc1451b93df /epan/dissectors/packet-s5066dts.c | |
parent | Initial commit. (diff) | |
download | wireshark-e4ba6dbc3f1e76890b22773807ea37fe8fa2b1bc.tar.xz wireshark-e4ba6dbc3f1e76890b22773807ea37fe8fa2b1bc.zip |
Adding upstream version 4.2.2.upstream/4.2.2
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'epan/dissectors/packet-s5066dts.c')
-rw-r--r-- | epan/dissectors/packet-s5066dts.c | 1362 |
1 files changed, 1362 insertions, 0 deletions
diff --git a/epan/dissectors/packet-s5066dts.c b/epan/dissectors/packet-s5066dts.c new file mode 100644 index 00000000..0d22ded2 --- /dev/null +++ b/epan/dissectors/packet-s5066dts.c @@ -0,0 +1,1362 @@ +/* + * packet-s5066dts.c + * Routines for STANAG 5066 DTS layer packet dissection + * + * Copyright (c) 2013 + * by Ibrahim Can Yuce <canyuce [at] gmail [dot] com> + * by M. Baris Demiray <baris.demiray [at] gmail [dot] com> + * + * Wireshark - Network traffic analyzer + * By Gerald Combs <gerald@wireshark.org> + * Copyright 1998 Gerald Combs + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +#include "config.h" + +#include <epan/packet.h> +#include <epan/prefs.h> +#include <epan/expert.h> +#include "packet-tcp.h" /* For tcp_dissect_pdus() */ +#include <epan/crc16-tvb.h> +#include <epan/crc32-tvb.h> +#include <wiretap/wtap.h> + +#define DISSECTOR_NAME "s5066dts" +/* STANAG 5066 DPDU properties */ +#define S5066_DPDU_MAX_DPDU_SIZE 1070 +#define S5066_DPDU_FRAME_HEADER_LEN 15 +/* Header field index (in bytes) and size (in bits) constants */ +#define S5066_DPDU_EOW_TYPE_INDEX 2 +#define S5066_DPDU_EOW_CONTENT_INDEX 3 +#define S5066_DPDU_EOT_INDEX 4 +#define S5066_DPDU_SIZE_OF_ADDRESS_INDEX 5 +#define S5066_DPDU_SIZE_OF_HEADER_INDEX 5 +#define S5066_DPDU_SYNC_SEQUENCE_SIZE 2 /*bytes*/ +/* D_PDU message types */ +#define S5066_DPDU_DATA_ONLY 0 +#define S5066_DPDU_ACK_ONLY 1 +#define S5066_DPDU_DATA_ACK 2 +#define S5066_DPDU_RESET_WIN_RESYNC 3 +#define S5066_DPDU_EXP_DATA_ONLY 4 +#define S5066_DPDU_EXP_ACK_ONLY 5 +#define S5066_DPDU_MANAGEMENT 6 +#define S5066_DPDU_NON_ARQ_DATA 7 +#define S5066_DPDU_EXP_NON_ARQ_DATA 8 +#define S5066_DPDU_WARNING 15 +/* EOW message types */ +#define S5066_EOW_RESERVED 0 +#define S5066_EOW_DRC_REQUEST 1 +#define S5066_EOW_DRC_RESPONSE 2 +#define S5066_EOW_UNRECOGNIZED_TYPE 3 +#define S5066_EOW_CAPABILITY 4 +#define S5066_EOW_ALM_REQUEST 5 +#define S5066_EOW_ALM_RESPONSE 6 +#define S5066_EOW_HDR_DRC_REQUEST 7 +#define S5066_EOW_HFTRP_TOKEN 15 + +void proto_register_s5066dts(void); + +static gint proto_s5066dts = -1; + +static dissector_handle_t s5066dts_handle; +static dissector_handle_t s5066dts_over_tcp_handle; + +/* Configuration parameters */ +static gboolean config_proto_desegment = TRUE; + +/* Initialize expert fields */ +static expert_field ei_s5066dts_eow_hdr_drc_request_invalid = EI_INIT; +static expert_field ei_s5066dts_eow_hftrp_invalid = EI_INIT; + +/* TCP port that will be listened by the application that peer + * dts layers will be connected through + */ +static range_t *config_s5066dts_ports = NULL; + +static gint hf_s5066dts_sync_word = -1; +static gint hf_s5066dts_dpdu_type = -1; +static gint hf_s5066dts_eow_type = -1; +static gint hf_s5066dts_eow_data = -1; +static gint hf_s5066dts_eot = -1; +static gint hf_s5066dts_address_size = -1; +static gint hf_s5066dts_header_size = -1; +static gint hf_s5066dts_header_crc = -1; +static gint hf_s5066dts_cpdu_crc = -1; +static gint hf_s5066dts_segmented_cpdu = -1; +static gint hf_s5066dts_dest_addr = -1; +static gint hf_s5066dts_src_addr = -1; + +/* EOW TYPES */ +/* { 1, "DRC_REQUEST"}, */ +static gint hf_s5066dts_eow_drc_request_data_rate = -1; +static gint hf_s5066dts_eow_drc_request_interleaving = -1; +static gint hf_s5066dts_eow_drc_request_others = -1; +/* { 2, "DRC_RESPONSE"}, */ +static gint hf_s5066dts_eow_drc_response_response = -1; +static gint hf_s5066dts_eow_drc_response_reason = -1; +/* { 3, "UNRECOGNIZED_TYPE"}, */ +static gint hf_s5066dts_eow_unrec_type_response = -1; +static gint hf_s5066dts_eow_unrec_type_reason = -1; +/* { 4, "CAPABILITY"}, */ +static gint hf_s5066dts_eow_capability_adaptive = -1; +static gint hf_s5066dts_eow_capability_stanag_4529 = -1; +static gint hf_s5066dts_eow_capability_mil_std_188_110a = -1; +static gint hf_s5066dts_eow_capability_extended = -1; +static gint hf_s5066dts_eow_capability_full_duplex = -1; +static gint hf_s5066dts_eow_capability_split_frequency = -1; +static gint hf_s5066dts_eow_capability_non_arcs_ale = -1; +static gint hf_s5066dts_eow_capability_arcs = -1; +/* { 5, "ALM_REQUEST"}, */ +static gint hf_s5066dts_eow_alm_request_data_rate = -1; +static gint hf_s5066dts_eow_alm_request_interleaving = -1; +static gint hf_s5066dts_eow_alm_request_others = -1; +/* { 6, "ALM_RESPONSE"}, */ +static gint hf_s5066dts_eow_alm_response_response = -1; +static gint hf_s5066dts_eow_alm_response_reason = -1; +/* { 7, "HDR_DRC_REQUEST"}, */ +static gint hf_s5066dts_eow_hdr_drc_request_waveform = -1; +static gint hf_s5066dts_eow_hdr_drc_request_num_channels = -1; +static gint hf_s5066dts_eow_hdr_drc_request_data_rate = -1; +static gint hf_s5066dts_eow_hdr_drc_request_interleaver_length = -1; +/* {15, "HFTRP FRAME CONTROL"}, */ +static gint hf_s5066dts_eow_hftrp_hftrp_token = -1; + +/* DPDU TYPES */ +/* { 0, "DATA_ONLY"}, */ +static gint hf_s5066dts_data_only_cpdu_start = -1; +static gint hf_s5066dts_data_only_cpdu_end = -1; +static gint hf_s5066dts_data_only_deliver_in_order = -1; +static gint hf_s5066dts_data_only_drop_cpdu = -1; +static gint hf_s5066dts_data_only_tx_win_uwe = -1; +static gint hf_s5066dts_data_only_tx_win_lwe = -1; +static gint hf_s5066dts_data_only_segmented_cpdu_size = -1; +static gint hf_s5066dts_data_only_transmit_sequence_number = -1; +/* { 1, "ACK_ONLY"}, */ +static gint hf_s5066dts_ack_only_rx_lwe = -1; +static gint hf_s5066dts_ack_only_acks = -1; +/* { 2, "DATA_ACK"}, */ +static gint hf_s5066dts_data_ack_cpdu_start = -1; +static gint hf_s5066dts_data_ack_cpdu_end = -1; +static gint hf_s5066dts_data_ack_deliver_in_order = -1; +static gint hf_s5066dts_data_ack_drop_cpdu = -1; +static gint hf_s5066dts_data_ack_tx_win_uwe = -1; +static gint hf_s5066dts_data_ack_tx_win_lwe = -1; +static gint hf_s5066dts_data_ack_segmented_cpdu_size = -1; +static gint hf_s5066dts_data_ack_transmit_sequence_number = -1; +static gint hf_s5066dts_data_ack_rx_lwe = -1; +static gint hf_s5066dts_data_ack_acks = -1; +/* { 3, "RESET_WIN_RESYNC"}, */ +static gint hf_s5066dts_reset_win_resync_unused = -1; +static gint hf_s5066dts_reset_win_resync_full_reset_command = -1; +static gint hf_s5066dts_reset_win_resync_reset_tx_win_rqst = -1; +static gint hf_s5066dts_reset_win_resync_reset_rx_win_cmnd = -1; +static gint hf_s5066dts_reset_win_resync_reset_ack = -1; +static gint hf_s5066dts_reset_win_resync_new_rx_lwe = -1; +static gint hf_s5066dts_reset_win_resync_reset_frame_id_number = -1; +/* { 4, "EXP_DATA_ONLY"}, */ +static gint hf_s5066dts_exp_data_only_cpdu_start = -1; +static gint hf_s5066dts_exp_data_only_cpdu_end = -1; +static gint hf_s5066dts_exp_data_only_cpdu_id = -1; +static gint hf_s5066dts_exp_data_only_segmented_cpdu_size = -1; +static gint hf_s5066dts_exp_data_only_transmit_sequence_number = -1; +/* { 5, "EXP_ACK_ONLY"}, */ +static gint hf_s5066dts_exp_ack_only_rx_lwe = -1; +static gint hf_s5066dts_exp_ack_only_acks = -1; +/* { 6, "MANAGEMENT"}, */ +static gint hf_s5066dts_management_unused = -1; +static gint hf_s5066dts_management_extended_message_flag = -1; +static gint hf_s5066dts_management_message = -1; +static gint hf_s5066dts_management_ack = -1; +static gint hf_s5066dts_management_management_frame_id = -1; +static gint hf_s5066dts_management_extended_message = -1; +static gint hf_s5066dts_management_extended_message_hftrp_payload_size = -1; +static gint hf_s5066dts_management_extended_message_hftrp_ra = -1; +static gint hf_s5066dts_management_extended_message_hftrp_seq_id = -1; +static gint hf_s5066dts_management_extended_message_hftrp_gen_seq_id = -1; +static gint hf_s5066dts_management_extended_message_hftrp_new_successor_id = -1; +static gint hf_s5066dts_management_extended_message_hftrp_number_of_nodes = -1; +/* { 7, "NON_ARQ_DATA"}, */ +static gint hf_s5066dts_non_arq_data_cpdu_id_1 = -1; +static gint hf_s5066dts_non_arq_data_deliver_in_order = -1; +static gint hf_s5066dts_non_arq_data_group_address = -1; +static gint hf_s5066dts_non_arq_data_cpdu_id_2 = -1; +static gint hf_s5066dts_non_arq_data_cpdu_size = -1; +static gint hf_s5066dts_non_arq_data_cpdu_segment_offset = -1; +static gint hf_s5066dts_non_arq_data_cpdu_reception_window = -1; +static gint hf_s5066dts_non_arq_data_segmented_cpdu_size = -1; +/* { 8, "EXP_NON_ARQ_DATA"}, */ +static gint hf_s5066dts_exp_non_arq_data_cpdu_id_1 = -1; +static gint hf_s5066dts_exp_non_arq_data_deliver_in_order = -1; +static gint hf_s5066dts_exp_non_arq_data_group_address = -1; +static gint hf_s5066dts_exp_non_arq_data_cpdu_id_2 = -1; +static gint hf_s5066dts_exp_non_arq_data_cpdu_size = -1; +static gint hf_s5066dts_exp_non_arq_data_cpdu_segment_offset = -1; +static gint hf_s5066dts_exp_non_arq_data_cpdu_reception_window = -1; +static gint hf_s5066dts_exp_non_arq_data_segmented_cpdu_size = -1; +/* {15, "WARNING"}, */ +static gint hf_s5066dts_warning_frame_type = -1; +static gint hf_s5066dts_warning_reason = -1; + +static gint ett_s5066dts = -1; +static gint ett_s5066dts_eow = -1; +static gint ett_s5066dts_address = -1; +static gint ett_s5066dts_pdu = -1; +static gint ett_s5066dts_hftrp_token = -1; + +static const value_string s5066dts_dpdu_type[] = { + { 0, "DATA_ONLY"}, + { 1, "ACK_ONLY"}, + { 2, "DATA_ACK"}, + { 3, "RESET_WIN_RESYNC"}, + { 4, "EXP_DATA_ONLY"}, + { 5, "EXP_ACK_ONLY"}, + { 6, "MANAGEMENT"}, + { 7, "NON_ARQ_DATA"}, + { 8, "EXP_NON_ARQ_DATA"}, + {15, "WARNING"}, + { 0, NULL}, +}; + +static const value_string s5066dts_eow_type[] = { + { 0, "RESERVED"}, + { 1, "DRC_REQUEST"}, + { 2, "DRC_RESPONSE"}, + { 3, "UNRECOGNIZED_TYPE"}, + { 4, "CAPABILITY"}, + { 5, "ALM_REQUEST"}, + { 6, "ALM_RESPONSE"}, + { 7, "HDR_DRC_REQUEST"}, + { 15, "HFTRP_TOKEN"}, + { 0, NULL}, +}; + +static const value_string s5066dts_eow_data_rate[] = { + { 0, "75 bps"}, + { 1, "150 bps"}, + { 2, "300 bps"}, + { 3, "600 bps"}, + { 4, "1200 bps"}, + { 5, "2400 bps"}, + { 6, "3200 bps"}, + { 7, "3600 bps"}, + { 8, "4800 bps"}, + { 9, "6400 bps"}, + { 10, "8000 bps"}, + { 11, "9600 bps"}, + { 0, NULL}, +}; + +static const value_string s5066dts_eow_interleaving[] = { + { 0, "No interleaving"}, + { 1, "Short interleaving"}, + { 2, "Long interleaving"}, + { 3, "Reserved"}, + { 0, NULL}, +}; + +static const value_string s5066dts_eow_others[] = { + { 0, "Request: Master has independent data rate"}, + { 1, "Request: Tx=Rx at master"}, + { 2, "Advisory: Advising node has independent data rate"}, + { 3, "Advisory: Tx=Rx at advising node"}, + { 0, NULL}, +}; + +static const value_string s5066dts_eow_response[] = { + { 0, "Accept"}, + { 1, "Refuse"}, + { 2, "Cancel"}, + { 3, "Confirm"}, + { 0, NULL}, +}; + +static const value_string s5066dts_eow_reason[] = { + { 0, "No reason"}, + { 1, "Tx and Rx parameters must be the same"}, + { 2, "Not possible to change modem data rate"}, + { 3, "Not possible to change modem interleaving"}, + { 4, "Not possible to change modem data rate or interleaving"}, + { 5, "Not consistent with local conditions"}, + { 0, NULL}, +}; + +static const value_string s5066dts_eow_waveform[] = { + { 0, "MS110A"}, + { 1, "MS110B"}, + { 2, "STANAG_4285"}, + { 3, "STANAG_4539"}, + { 4, "STANAG_4529"}, + { 5, "STANAG_4415"}, + { 6, "STANAG_4481_FSK"}, + { 7, "USER_CONFIGURATION_OPTION_1"}, + { 8, "USER_CONFIGURATION_OPTION_2"}, + { 9, "USER_CONFIGURATION_OPTION_3"}, + { 0, NULL}, +}; + +/* Used in Packet List pane */ +static const value_string s5066dts_eow_hftrp_frame_control_abbr[] = { + { 1, "RTT"}, + { 2, "ACK"}, + { 3, "SLS"}, + { 4, "SET"}, + { 5, "REL"}, + { 6, "DEL"}, + { 0, NULL}, +}; + +/* Used in Packet Details pane */ +static const value_string s5066dts_eow_hftrp_frame_control[] = { + { 1, "RTT - Right-to-transmit Token"}, + { 2, "ACK - Acknowledgment Token"}, + { 3, "SLS - Solicit Successor Token"}, + { 4, "SET - Set Successor Token"}, + { 5, "REL - Relayed Token"}, + { 6, "DEL - Delete Token"}, + { 0, NULL}, +}; + +static const value_string s5066dts_alm_reason[] = { + { 0, "No reason"}, + { 1, "Tx and Rx parameters must be the same"}, + { 2, "Not possible to change modem data rate"}, + { 3, "Not possible to change modem interleaving"}, + { 4, "Not possible to change modem data rate or interleaving"}, + { 5, "Not consistent with local conditions"}, + { 6, "Not possible to change frequency"}, + { 0, NULL}, +}; + +/* Register functions' forward references */ +void proto_reg_handoff_s5066dts(void); + +/* { 1, "DRC_REQUEST"}, */ +static void dissect_s5066dts_eow_drc_request(tvbuff_t *tvb, guint offset, proto_tree *tree) +{ + proto_tree_add_item(tree, hf_s5066dts_eow_drc_request_data_rate, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066dts_eow_drc_request_interleaving, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066dts_eow_drc_request_others, tvb, offset, 1, ENC_BIG_ENDIAN); +} + +/* { 2, "DRC_RESPONSE"}, */ +static void dissect_s5066dts_eow_drc_response(tvbuff_t *tvb, guint offset, proto_tree *tree) +{ + proto_tree_add_item(tree, hf_s5066dts_eow_drc_response_response, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066dts_eow_drc_response_reason, tvb, offset, 1, ENC_BIG_ENDIAN); +} + +/* { 3, "UNRECOGNIZED_TYPE"}, */ +static void dissect_s5066dts_eow_unrec_type(tvbuff_t *tvb, guint offset, proto_tree *tree) +{ + proto_tree_add_item(tree, hf_s5066dts_eow_unrec_type_response, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066dts_eow_unrec_type_reason, tvb, offset, 1, ENC_BIG_ENDIAN); +} + +/* { 4, "CAPABILITY"}, */ +static void dissect_s5066dts_eow_capability(tvbuff_t *tvb, guint offset, proto_tree *tree) +{ + proto_tree_add_item(tree, hf_s5066dts_eow_capability_adaptive, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066dts_eow_capability_stanag_4529, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066dts_eow_capability_mil_std_188_110a, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066dts_eow_capability_extended, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066dts_eow_capability_full_duplex, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066dts_eow_capability_split_frequency, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066dts_eow_capability_non_arcs_ale, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066dts_eow_capability_arcs, tvb, offset, 1, ENC_BIG_ENDIAN); +} + +/* { 5, "ALM_REQUEST"}, */ +static void dissect_s5066dts_eow_alm_request(tvbuff_t *tvb, guint offset, proto_tree *tree) +{ + proto_tree_add_item(tree, hf_s5066dts_eow_alm_request_data_rate, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066dts_eow_alm_request_interleaving, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066dts_eow_alm_request_others, tvb, offset, 1, ENC_BIG_ENDIAN); +} + +/* { 6, "ALM_RESPONSE"}, */ +static void dissect_s5066dts_eow_alm_response(tvbuff_t *tvb, guint offset, proto_tree *tree) +{ + proto_tree_add_item(tree, hf_s5066dts_eow_alm_response_response, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066dts_eow_alm_response_reason, tvb, offset, 1, ENC_BIG_ENDIAN); +} + +/* { 7, "HDR_DRC_REQUEST"}, */ +static void dissect_s5066dts_eow_hdr_drc_request(tvbuff_t *tvb, packet_info * pinfo, guint offset, + proto_tree *tree, guint pdu_type) +{ + + if (pdu_type != S5066_DPDU_MANAGEMENT) + { + expert_add_info(pinfo, tree, &ei_s5066dts_eow_hdr_drc_request_invalid); + return; + } + + proto_tree_add_item(tree, hf_s5066dts_eow_hdr_drc_request_waveform, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066dts_eow_hdr_drc_request_num_channels, tvb, offset, 1, ENC_BIG_ENDIAN); + +} + +/* {15, "HFTRP FRAME CONTROL"}, */ +static void dissect_s5066dts_eow_hftrp(tvbuff_t *tvb, packet_info * pinfo, guint offset, + proto_tree *tree, guint pdu_type) +{ + if (pdu_type != S5066_DPDU_MANAGEMENT) + { + expert_add_info(pinfo, tree, &ei_s5066dts_eow_hftrp_invalid); + return; + } + + proto_tree_add_item(tree, hf_s5066dts_eow_hftrp_hftrp_token, tvb, offset, 1, ENC_BIG_ENDIAN); +} + +/* + * Dissect EOW type according to C.5 EOW and Management Message Types + */ +static guint dissect_s5066dts_eow(tvbuff_t *tvb, packet_info * pinfo, guint offset, proto_tree *tree, + guint pdu_type) +{ + proto_tree *eow_tree; + guint eow_type; + + eow_type = tvb_get_guint8(tvb, offset) & 0x0F; + eow_tree = proto_tree_add_subtree(tree, tvb, offset, 2, ett_s5066dts_eow, NULL, "EOW Field"); + proto_tree_add_item(eow_tree, hf_s5066dts_eow_type, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; + + switch (eow_type) + { + case S5066_EOW_RESERVED: + proto_tree_add_item(eow_tree, hf_s5066dts_eow_data, tvb, offset, 1, ENC_BIG_ENDIAN); break; + case S5066_EOW_DRC_REQUEST: + dissect_s5066dts_eow_drc_request(tvb, offset, eow_tree); break; + case S5066_EOW_DRC_RESPONSE: + dissect_s5066dts_eow_drc_response(tvb, offset, eow_tree); break; + case S5066_EOW_UNRECOGNIZED_TYPE: + dissect_s5066dts_eow_unrec_type(tvb, offset, eow_tree); break; + case S5066_EOW_CAPABILITY: + dissect_s5066dts_eow_capability(tvb, offset, eow_tree); break; + case S5066_EOW_ALM_REQUEST: + dissect_s5066dts_eow_alm_request(tvb, offset, eow_tree); break; + case S5066_EOW_ALM_RESPONSE: + dissect_s5066dts_eow_alm_response(tvb, offset, eow_tree); break; + case S5066_EOW_HDR_DRC_REQUEST: + dissect_s5066dts_eow_hdr_drc_request(tvb, pinfo, offset, eow_tree, pdu_type); break; + case S5066_EOW_HFTRP_TOKEN: + dissect_s5066dts_eow_hftrp(tvb, pinfo, offset, eow_tree, pdu_type); break; + } + return ++offset; +} + +static void +s5066dts_address_format( gchar *result, guint32 address_value ) +{ + snprintf( result, ITEM_LABEL_LENGTH, "%d.%d.%d.%d", + address_value >> 24, + (address_value >> 16) & 0xFF, + (address_value >> 8) & 0xFF, + address_value & 0xFF); +} + +static guint dissect_s5066dts_address(tvbuff_t *tvb, guint offset, proto_tree *tree, packet_info *pinfo, + guint addr_size) +{ + guint32 source_address = 0, destination_address = 0; + proto_tree *address_tree; + unsigned int i; + + for ( i = 0; i < addr_size; i++) + { + destination_address = (destination_address << 4) | ((!(i % 2) + ? (tvb_get_guint8(tvb, offset + i / 2) >> 4) + : (tvb_get_guint8(tvb, offset + i / 2))) & 0x0F); + source_address = (source_address << 4) | ((!((i + addr_size) % 2) + ? (tvb_get_guint8(tvb, offset + (i + addr_size) / 2) >> 4) + : (tvb_get_guint8(tvb, offset + (i + addr_size) / 2))) & 0x0F); + } + + address_tree = proto_tree_add_subtree(tree, tvb, offset, addr_size, ett_s5066dts_address, NULL, "Destination & Source Addresses"); + + proto_tree_add_uint(address_tree, hf_s5066dts_dest_addr, tvb, offset, addr_size - addr_size / 2, destination_address); + proto_tree_add_uint(address_tree, hf_s5066dts_src_addr, tvb, offset + addr_size / 2, addr_size - addr_size / 2, source_address); + + col_add_fstr(pinfo->cinfo, COL_DEF_SRC, "%d.%d.%d.%d", + source_address >> 24, + (source_address >> 16) & 0xFF, + (source_address >> 8) & 0xFF, + source_address & 0xFF); + + col_add_fstr(pinfo->cinfo, COL_DEF_DST, "%d.%d.%d.%d", + destination_address >> 24, + (destination_address >> 16) & 0xFF, + (destination_address >> 8) & 0xFF, + destination_address & 0xFF); + + offset += addr_size; + return offset; +} + +static guint dissect_s5066dts_header_crc(tvbuff_t *tvb, guint offset, proto_tree *tree, + guint address_size, guint header_size) +{ + guint16 header_crc; + proto_item *ti; + + header_crc = crc16_0x9949_tvb_offset_seed(tvb, S5066_DPDU_SYNC_SEQUENCE_SIZE, + header_size + address_size - S5066_DPDU_SYNC_SEQUENCE_SIZE, 0); + + ti = proto_tree_add_item(tree, hf_s5066dts_header_crc, tvb, offset, 2, ENC_BIG_ENDIAN); + if (header_crc == tvb_get_letohs(tvb, offset)) + proto_item_append_text(ti, " (Correct)"); + else + proto_item_append_text(ti, " (Incorrect, should be %x)", header_crc); + + offset += 2; + return offset; +} + +static guint dissect_s5066dts_cpdu_crc(tvbuff_t *tvb, guint offset, proto_tree *tree, + guint address_size, guint header_size, guint segmented_cpdu_size) +{ + guint32 cpdu_crc; + proto_item *ti; + + cpdu_crc = crc32_0x0AA725CF_tvb_offset_seed(tvb, header_size + address_size + S5066_DPDU_SYNC_SEQUENCE_SIZE, + segmented_cpdu_size, 0); + + ti = proto_tree_add_item(tree, hf_s5066dts_cpdu_crc, tvb, offset, 4, ENC_BIG_ENDIAN); + if (cpdu_crc == tvb_get_letohl(tvb, offset)) + proto_item_append_text(ti, " (Correct)"); + else + proto_item_append_text(ti, " (Incorrect, should be %x)", cpdu_crc); + + offset +=4; + return offset; +} + +/* { 0, "DATA_ONLY"}, */ +static guint dissect_s5066dts_data_only(tvbuff_t *tvb, guint offset, proto_tree *tree) +{ + proto_tree_add_item(tree, hf_s5066dts_data_only_cpdu_start, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066dts_data_only_cpdu_end, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066dts_data_only_deliver_in_order, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066dts_data_only_drop_cpdu, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066dts_data_only_tx_win_uwe, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066dts_data_only_tx_win_lwe, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066dts_data_only_segmented_cpdu_size, tvb, offset, 2, ENC_BIG_ENDIAN); offset +=2; + proto_tree_add_item(tree, hf_s5066dts_data_only_transmit_sequence_number, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; + + return offset; +} + +/* { 1, "ACK_ONLY"}, */ +static guint dissect_s5066dts_ack_only(tvbuff_t *tvb, guint offset, proto_tree *tree, + guint header_size) +{ + guint ack_size; + ack_size = header_size - 7; + + proto_tree_add_item(tree, hf_s5066dts_ack_only_rx_lwe, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; + if (ack_size > 0){ + proto_tree_add_item(tree, hf_s5066dts_ack_only_acks, tvb, offset, ack_size, ENC_NA); offset += ack_size; + } + + return offset; +} + +/* { 2, "DATA_ACK"}, */ +static guint dissect_s5066dts_data_ack(tvbuff_t *tvb, guint offset, proto_tree *tree, + guint header_size) +{ + guint ack_size; + ack_size = header_size - 10; + + proto_tree_add_item(tree, hf_s5066dts_data_ack_cpdu_start, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066dts_data_ack_cpdu_end, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066dts_data_ack_deliver_in_order, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066dts_data_ack_drop_cpdu, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066dts_data_ack_tx_win_uwe, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066dts_data_ack_tx_win_lwe, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066dts_data_ack_segmented_cpdu_size, tvb, offset, 2, ENC_BIG_ENDIAN); offset +=2; + proto_tree_add_item(tree, hf_s5066dts_data_ack_transmit_sequence_number, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; + proto_tree_add_item(tree, hf_s5066dts_data_ack_rx_lwe, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; + if (ack_size > 0){ + proto_tree_add_item(tree, hf_s5066dts_data_ack_acks, tvb, offset, ack_size, ENC_NA); offset += ack_size; + } + + return offset; +} + +/* { 3, "RESET_WIN_RESYNC"}, */ +static guint dissect_s5066dts_reset_win_resync(tvbuff_t *tvb, guint offset, proto_tree *tree) +{ + proto_tree_add_item(tree, hf_s5066dts_reset_win_resync_unused, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066dts_reset_win_resync_full_reset_command, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066dts_reset_win_resync_reset_tx_win_rqst, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066dts_reset_win_resync_reset_rx_win_cmnd, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066dts_reset_win_resync_reset_ack, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; + proto_tree_add_item(tree, hf_s5066dts_reset_win_resync_new_rx_lwe, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; + proto_tree_add_item(tree, hf_s5066dts_reset_win_resync_reset_frame_id_number, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; + + return offset; +} + +/* { 4, "EXP_DATA_ONLY"}, */ +static guint dissect_s5066dts_exp_data_only(tvbuff_t *tvb, guint offset, proto_tree *tree) +{ + proto_tree_add_item(tree, hf_s5066dts_exp_data_only_cpdu_start, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066dts_exp_data_only_cpdu_end, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066dts_exp_data_only_cpdu_id, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066dts_exp_data_only_segmented_cpdu_size, tvb, offset, 2, ENC_BIG_ENDIAN); offset +=2; + proto_tree_add_item(tree, hf_s5066dts_exp_data_only_transmit_sequence_number, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; + + return offset; +} + +/* { 5, "EXP_ACK_ONLY"}, */ +static guint dissect_s5066dts_exp_ack_only(tvbuff_t *tvb, guint offset, proto_tree *tree, + guint header_size) +{ + guint ack_size; + ack_size = header_size - 7; + + proto_tree_add_item(tree, hf_s5066dts_exp_ack_only_rx_lwe, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; + if (ack_size > 0) + proto_tree_add_item(tree, hf_s5066dts_exp_ack_only_acks, tvb, offset, ack_size, ENC_NA); + offset += ack_size; + + return offset; +} + +/* { 6, "MANAGEMENT"}, */ +static guint dissect_s5066dts_management(tvbuff_t *tvb, guint offset, proto_tree *tree, guint header_size) +{ + guint8 eow_content; + proto_tree *hftrp_token_tree = NULL; + guint eow_type; + guint extended_message_size; + + eow_type = tvb_get_guint8(tvb, offset) & 0x0F; + eow_content = tvb_get_guint8(tvb, S5066_DPDU_EOW_CONTENT_INDEX); + extended_message_size = header_size - 8; + + proto_tree_add_item(tree, hf_s5066dts_management_unused, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066dts_management_extended_message_flag, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066dts_management_message, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066dts_management_ack, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; + proto_tree_add_item(tree, hf_s5066dts_management_management_frame_id, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + + if (eow_type == S5066_EOW_HDR_DRC_REQUEST) + { + proto_tree_add_item(tree, hf_s5066dts_eow_hdr_drc_request_data_rate, tvb, offset, 4, ENC_BIG_ENDIAN); + offset += 4; + + proto_tree_add_item(tree, hf_s5066dts_eow_hdr_drc_request_interleaver_length, tvb, offset, 2, ENC_BIG_ENDIAN); + offset += 2; + } + else if (extended_message_size > 0) + { + /* If eow type is 15 then parse HFTRP token details */ + if (eow_type == S5066_EOW_HFTRP_TOKEN) + { + /* Add a new subtree for HFTRP token details */ + hftrp_token_tree = proto_tree_add_subtree_format(tree, tvb, offset, extended_message_size, + ett_s5066dts_hftrp_token, NULL, "HFTRP Token (%s)", + val_to_str_const(eow_content, s5066dts_eow_hftrp_frame_control, "UNKNOWN_HFTRP_TOKEN")); + proto_tree_add_item(hftrp_token_tree, + hf_s5066dts_management_extended_message_hftrp_payload_size, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; + proto_tree_add_item(hftrp_token_tree, + hf_s5066dts_management_extended_message_hftrp_ra, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; + proto_tree_add_item(hftrp_token_tree, + hf_s5066dts_management_extended_message_hftrp_seq_id, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; + proto_tree_add_item(hftrp_token_tree, + hf_s5066dts_management_extended_message_hftrp_gen_seq_id, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; + proto_tree_add_item(hftrp_token_tree, + hf_s5066dts_management_extended_message_hftrp_new_successor_id, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; + proto_tree_add_item(hftrp_token_tree, + hf_s5066dts_management_extended_message_hftrp_number_of_nodes, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; + } + /* otherwise just display it as a byte stream */ + else + { + proto_tree_add_item(tree, hf_s5066dts_management_extended_message, tvb, offset, extended_message_size, ENC_NA); + offset += extended_message_size; + } + } + + return offset; +} + +/* { 7, "NON_ARQ_DATA"}, */ +static guint dissect_s5066dts_non_arq_data(tvbuff_t *tvb, guint offset, proto_tree *tree) +{ + proto_tree_add_item(tree, hf_s5066dts_non_arq_data_cpdu_id_1, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066dts_non_arq_data_deliver_in_order, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066dts_non_arq_data_group_address, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066dts_non_arq_data_segmented_cpdu_size, tvb, offset, 2, ENC_BIG_ENDIAN); offset +=2; + proto_tree_add_item(tree, hf_s5066dts_non_arq_data_cpdu_id_2, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; + proto_tree_add_item(tree, hf_s5066dts_non_arq_data_cpdu_size, tvb, offset, 2, ENC_BIG_ENDIAN); offset +=2; + proto_tree_add_item(tree, hf_s5066dts_non_arq_data_cpdu_segment_offset, tvb, offset, 2, ENC_BIG_ENDIAN); offset +=2; + proto_tree_add_item(tree, hf_s5066dts_non_arq_data_cpdu_reception_window, tvb, offset, 2, ENC_BIG_ENDIAN); offset +=2; + + return offset; +} + +/* { 8, "EXP_NON_ARQ_DATA"}, */ +static guint dissect_s5066dts_exp_non_arq_data(tvbuff_t *tvb, guint offset, proto_tree *tree) +{ + proto_tree_add_item(tree, hf_s5066dts_exp_non_arq_data_cpdu_id_1, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066dts_exp_non_arq_data_deliver_in_order, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066dts_exp_non_arq_data_group_address, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066dts_exp_non_arq_data_segmented_cpdu_size, tvb, offset, 2, ENC_BIG_ENDIAN); offset +=2; + proto_tree_add_item(tree, hf_s5066dts_exp_non_arq_data_cpdu_id_2, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; + proto_tree_add_item(tree, hf_s5066dts_exp_non_arq_data_cpdu_size, tvb, offset, 2, ENC_BIG_ENDIAN); offset +=2; + proto_tree_add_item(tree, hf_s5066dts_exp_non_arq_data_cpdu_segment_offset, tvb, offset, 2, ENC_BIG_ENDIAN); offset +=2; + proto_tree_add_item(tree, hf_s5066dts_exp_non_arq_data_cpdu_reception_window, tvb, offset, 2, ENC_BIG_ENDIAN); offset +=2; + + return offset; +} + +/* {15, "WARNING"}, */ +static guint dissect_s5066dts_warning(tvbuff_t *tvb, guint offset, proto_tree *tree) +{ + proto_tree_add_item(tree, hf_s5066dts_warning_frame_type, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066dts_warning_reason, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; + + return offset; +} + +static guint calculate_s5066dts_dpdu_len(packet_info *pinfo _U_, tvbuff_t *tvb, + int offset _U_, void *data _U_) +{ + guint pdu_type; + guint address_size; + guint header_size; + guint pdu_size; + guint segmented_cpdu_size; + + /* XXX: why is the offset not used to get this value? */ + if (tvb_get_guint8(tvb, 0) != 0x90) + return 1; + else if (tvb_get_guint8(tvb, 1) != 0xEB) + return 2; + + pdu_type = (tvb_get_guint8(tvb, 2) & 0xF0) >> 4; + address_size = (tvb_get_guint8(tvb, S5066_DPDU_SIZE_OF_ADDRESS_INDEX) & 0xE0) >> 5; + header_size = tvb_get_guint8(tvb, S5066_DPDU_SIZE_OF_HEADER_INDEX) & 0x1F; + pdu_size = header_size + address_size + S5066_DPDU_SYNC_SEQUENCE_SIZE; + + if (pdu_type == S5066_DPDU_DATA_ONLY || pdu_type == S5066_DPDU_DATA_ACK || + pdu_type == S5066_DPDU_EXP_DATA_ONLY || pdu_type == S5066_DPDU_NON_ARQ_DATA || + pdu_type == S5066_DPDU_EXP_NON_ARQ_DATA) + { + segmented_cpdu_size = tvb_get_ntohs(tvb, 6 + address_size) & 0x03FF; + pdu_size += segmented_cpdu_size + 4; + } + return pdu_size; +} + +static int dissect_s5066dts(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_) +{ + proto_tree *s5066dts_tree = NULL, *pdu_tree = NULL; + proto_item *ti = NULL; + guint offset = 0; + guint pdu_type; + guint address_size; + guint header_size; + guint segmented_cpdu_size; + /* Add EOW (Engineering OrderWire */ + guint8 eow_type; + guint8 eow_content; + + if (tvb_get_guint8(tvb, 0) != 0x90 || tvb_get_guint8(tvb, 1) != 0xEB) { + /* Cannot find sync pattern at dissect_s5066dts()! */ + return 0; + } + + col_set_str(pinfo->cinfo, COL_PROTOCOL, DISSECTOR_NAME); + pdu_type = (tvb_get_guint8(tvb, 2) & 0xF0) >> 4; + + /* Add DPDU type and name */ + col_add_fstr(pinfo->cinfo, COL_INFO, "DpduType=%d (%s)", pdu_type, val_to_str(pdu_type, s5066dts_dpdu_type, + "Unknown (0x%02x)")); + + address_size = (tvb_get_guint8(tvb, S5066_DPDU_SIZE_OF_ADDRESS_INDEX) & 0xE0) >> 5; + eow_type = tvb_get_guint8(tvb, S5066_DPDU_EOW_TYPE_INDEX) & 0x0F; + eow_content = tvb_get_guint8(tvb, S5066_DPDU_EOW_CONTENT_INDEX); + + switch (eow_type) + { + case S5066_EOW_RESERVED: + col_append_fstr(pinfo->cinfo, COL_INFO, " EowType=RESERVED"); + break; + case S5066_EOW_DRC_REQUEST: /* Data Rate Change Request */ + case S5066_EOW_DRC_RESPONSE: /* Data Rate Change Response */ + case S5066_EOW_UNRECOGNIZED_TYPE: /* Unrecognized Type Error */ + case S5066_EOW_CAPABILITY: /* Capability Advertisement */ + case S5066_EOW_ALM_REQUEST: /* Frequency Change / ALM Request */ + case S5066_EOW_ALM_RESPONSE: /* Frequency Change / ALM Response */ + case S5066_EOW_HDR_DRC_REQUEST: /* High Data Rate (HDR) Change Request */ + col_append_fstr(pinfo->cinfo, COL_INFO, " EowType=%d (%s)", eow_type, + val_to_str_const(eow_type, s5066dts_eow_type, "UNKNOWN_EOW_TYPE")); + break; + case 8: /* Unspecified/User Defined */ + case 9: /* Unspecified/User Defined */ + case 10: /* Unspecified/User Defined */ + case 11: /* Unspecified/User Defined */ + case 12: /* Unspecified/User Defined */ + case 13: /* Unspecified/User Defined */ + case 14: /* Unspecified/User Defined */ + col_append_fstr(pinfo->cinfo, COL_INFO, " EowType=UNSPECIFIED"); + break; + case S5066_EOW_HFTRP_TOKEN: + col_append_fstr(pinfo->cinfo, COL_INFO, " EowType=%d (%s:%s)", eow_type, + val_to_str_const(eow_type, s5066dts_eow_type, "UNKNOWN_EOW_TYPE"), + val_to_str_const(eow_content, s5066dts_eow_hftrp_frame_control_abbr, "UNKNOWN_HFTRP_TOKEN")); + break; + } + + /* Append EOT (End of Transmission) */ + col_append_fstr(pinfo->cinfo, COL_INFO, " EOT=%d", tvb_get_guint8(tvb, S5066_DPDU_EOT_INDEX)); + + /* Append DPDU-specific information */ + switch (pdu_type) + { + case S5066_DPDU_DATA_ONLY: + case S5066_DPDU_EXP_DATA_ONLY: + col_append_fstr(pinfo->cinfo, COL_INFO, " Seq=%d", tvb_get_guint8(tvb, 8 + address_size)); + break; + case S5066_DPDU_ACK_ONLY: + case S5066_DPDU_EXP_ACK_ONLY: + col_append_fstr(pinfo->cinfo, COL_INFO, " RxLWE=%d", tvb_get_guint8(tvb, 6 + address_size)); + break; + case S5066_DPDU_DATA_ACK: + col_append_fstr(pinfo->cinfo, COL_INFO, " Seq=%d RxLWE=%d", + tvb_get_guint8(tvb, 8 + address_size), + tvb_get_guint8(tvb, 9 + address_size)); + break; + case S5066_DPDU_MANAGEMENT: + col_append_fstr(pinfo->cinfo, COL_INFO, " FrameID=%d", tvb_get_guint8(tvb, 7 + address_size)); + break; + } + + if (tree) + { + ti = proto_tree_add_protocol_format(tree, proto_s5066dts, tvb, 0, -1, "STANAG 5066 (DTS Layer)"); + s5066dts_tree = proto_item_add_subtree(ti, ett_s5066dts); + proto_tree_add_item(s5066dts_tree, hf_s5066dts_sync_word, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; + proto_tree_add_item(s5066dts_tree, hf_s5066dts_dpdu_type, tvb, offset, 1, ENC_BIG_ENDIAN); + offset = dissect_s5066dts_eow(tvb, pinfo, offset, s5066dts_tree, pdu_type); + + /* + * Append DPDU type to the root + */ + proto_item_append_text(ti, ", DPDU Type %s ", val_to_str_const(pdu_type, s5066dts_dpdu_type, "UNKNOWN_DPDU_TYPE")); + proto_tree_add_item(s5066dts_tree, hf_s5066dts_eot, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; + proto_tree_add_item(s5066dts_tree, hf_s5066dts_address_size, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(s5066dts_tree, hf_s5066dts_header_size, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; + offset = dissect_s5066dts_address(tvb, offset, s5066dts_tree, pinfo, address_size); + header_size = tvb_get_guint8(tvb, S5066_DPDU_SIZE_OF_HEADER_INDEX) & 0x1F; + pdu_tree = proto_tree_add_subtree(s5066dts_tree, tvb, offset, header_size - 6, ett_s5066dts_pdu, NULL, "D_PDU Type Specific Header"); + + switch (pdu_type) + { + case S5066_DPDU_DATA_ONLY: offset = dissect_s5066dts_data_only(tvb, offset, pdu_tree); break; + case S5066_DPDU_ACK_ONLY: offset = dissect_s5066dts_ack_only(tvb, offset, pdu_tree, header_size); break; + case S5066_DPDU_DATA_ACK: offset = dissect_s5066dts_data_ack(tvb, offset, pdu_tree, header_size); break; + case S5066_DPDU_RESET_WIN_RESYNC: offset = dissect_s5066dts_reset_win_resync(tvb, offset, pdu_tree); break; + case S5066_DPDU_EXP_DATA_ONLY: offset = dissect_s5066dts_exp_data_only(tvb, offset, pdu_tree); break; + case S5066_DPDU_EXP_ACK_ONLY: offset = dissect_s5066dts_exp_ack_only(tvb, offset, pdu_tree, header_size); break; + case S5066_DPDU_MANAGEMENT: offset = dissect_s5066dts_management(tvb, offset, pdu_tree, header_size); break; + case S5066_DPDU_NON_ARQ_DATA: offset = dissect_s5066dts_non_arq_data(tvb, offset, pdu_tree); break; + case S5066_DPDU_EXP_NON_ARQ_DATA: offset = dissect_s5066dts_exp_non_arq_data(tvb, offset, pdu_tree); break; + case S5066_DPDU_WARNING: offset = dissect_s5066dts_warning(tvb, offset, pdu_tree); break; + } + offset = dissect_s5066dts_header_crc(tvb, offset, s5066dts_tree, address_size, header_size); + if (pdu_type == S5066_DPDU_DATA_ONLY || pdu_type == S5066_DPDU_DATA_ACK + || pdu_type == S5066_DPDU_EXP_DATA_ONLY || pdu_type == S5066_DPDU_NON_ARQ_DATA + || pdu_type == S5066_DPDU_EXP_NON_ARQ_DATA) + { + segmented_cpdu_size = tvb_get_ntohs(tvb, 6 + address_size) & 0x03FF; + proto_tree_add_item(s5066dts_tree, hf_s5066dts_segmented_cpdu, tvb, offset, segmented_cpdu_size, ENC_NA); + offset += segmented_cpdu_size; + /*offset = */dissect_s5066dts_cpdu_crc(tvb, offset, s5066dts_tree, address_size, header_size, segmented_cpdu_size); + } + } + + return tvb_captured_length(tvb); +} + +static int dissect_s5066dts_raw(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_) +{ + guint b_length = tvb_captured_length(tvb); + + /* Make sure there are enough bytes for a DPDU */ + if ( b_length < S5066_DPDU_FRAME_HEADER_LEN){ + /* "There are not enough bytes for a DPDU! */ + return 0; + } + + /* Check if the first two bytes are 0x90 and 0xEB + * If not then this is neither a DPDU nor an un-reassembled one + */ + if ((tvb_get_guint8(tvb, 0) != 0x90) || (tvb_get_guint8(tvb, 1) != 0xEB)) { + /* Cannot find sync pattern at dissect_s5066dts_raw()! */ + return 0; + } + calculate_s5066dts_dpdu_len(pinfo, tvb, 0, NULL); + dissect_s5066dts(tvb, pinfo, tree, NULL); + + return b_length; +} + +static int dissect_s5066dts_tcp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data) +{ + guint b_length = tvb_captured_length(tvb); + + /* Make sure there are enough bytes for a DPDU */ + if ( b_length < S5066_DPDU_FRAME_HEADER_LEN){ + /* "There are not enough bytes for a DPDU! */ + return 0; + } + + /* Check if the first two bytes are 0x90 and 0xEB + * If not then this is neitger a DPDU nor an un-reassembled one + */ + if ((tvb_get_guint8(tvb, 0) != 0x90) || (tvb_get_guint8(tvb, 1) != 0xEB)) { + /* Cannot find sync pattern at dissect_s5066dts_tcp()! */ + return 0; + } + + /* Drop packets with port matches other than the destination port. */ + if (!value_is_in_range(config_s5066dts_ports, pinfo->destport)) { + /* Configured to dissect TCP destination port matches only, dropping.. */ + return 0; + } + + tcp_dissect_pdus(tvb, pinfo, tree, config_proto_desegment, S5066_DPDU_FRAME_HEADER_LEN, calculate_s5066dts_dpdu_len, + dissect_s5066dts, data); + + return b_length; +} + +static void +apply_s5066dts_prefs(void) +{ + /* STANAG 5066 uses the port preference for some heuristics */ + config_s5066dts_ports = prefs_get_range_value("s5066dts", "tcp.port");; +} + +void proto_register_s5066dts (void) +{ + module_t *s5066dts_module; + static hf_register_info hf[] = { + { &hf_s5066dts_sync_word, + { "Sync preamble", "s5066dts.sync", FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL } + }, + { &hf_s5066dts_dpdu_type, + { "D_PDU type", "s5066dts.type", FT_UINT8, BASE_DEC, VALS(s5066dts_dpdu_type), 0xF0, NULL, HFILL } + }, + { &hf_s5066dts_eow_type, + { "EOW type", "s5066dts.eow.type", FT_UINT8, BASE_DEC, VALS(s5066dts_eow_type), 0x0F, NULL, HFILL } + }, + { &hf_s5066dts_eow_data, + { "EOW data", "s5066dts.eow.data", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL } + }, + { &hf_s5066dts_eot, + { "EOT", "s5066dts.eot", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + { &hf_s5066dts_address_size, + { "Address size (1/2 bytes)", "s5066dts.address.size", FT_UINT8, BASE_DEC, NULL, 0xE0, NULL, HFILL } + }, + { &hf_s5066dts_header_size, + { "Header size", "s5066dts.header_size", FT_UINT8, BASE_DEC, NULL, 0x1F, NULL, HFILL } + }, + { &hf_s5066dts_segmented_cpdu, + { "C_PDU Segment", "s5066dts.segmented_cpdu", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_s5066dts_dest_addr, + { "Destination Address", "s5066dts.dest_addr", FT_UINT32, BASE_CUSTOM, CF_FUNC(s5066dts_address_format), 0x0, NULL, HFILL } + }, + { &hf_s5066dts_src_addr, + { "Source Address", "s5066dts.src_addr", FT_UINT32, BASE_CUSTOM, CF_FUNC(s5066dts_address_format), 0x0, NULL, HFILL } + }, + { &hf_s5066dts_header_crc, + { "CRC on header", "s5066dts.header_crc", FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL } + }, + { &hf_s5066dts_cpdu_crc, + { "CRC on C_PDU segment", "s5066dts.cpdu_crc", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL } + }, + /* { 1, "DRC_REQUEST"}, */ + { &hf_s5066dts_eow_drc_request_data_rate, + { "Data Rate", "s5066dts.eow.drc_request.data_rate", FT_UINT8, BASE_DEC, VALS(s5066dts_eow_data_rate), + 0xF0, NULL, HFILL } + }, + { &hf_s5066dts_eow_drc_request_interleaving, + { "Interleaver parameter", "s5066dts.eow.drc_request.interleaving", FT_UINT8, BASE_DEC, + VALS(s5066dts_eow_interleaving), 0x0C, NULL, HFILL } + }, + { &hf_s5066dts_eow_drc_request_others, + { "Other parameters", "s5066dts.eow.drc_request.others", FT_UINT8, BASE_DEC, + VALS(s5066dts_eow_others), 0x03, NULL, HFILL } + }, + /* { 2, "DRC_RESPONSE"}, */ + { &hf_s5066dts_eow_drc_response_response, + { "Response for DRC", "s5066dts.eow.drc_response.response", FT_UINT8, BASE_DEC, + VALS(s5066dts_eow_response), 0xE0, NULL, HFILL } + }, + { &hf_s5066dts_eow_drc_response_reason, + { "Reason", "s5066dts.eow.drc_response.reason", FT_UINT8, BASE_DEC, + VALS(s5066dts_eow_reason), 0x1F, NULL, HFILL } + }, + /* { 3, "UNRECOGNIZED_TYPE"}, */ + { &hf_s5066dts_eow_unrec_type_response, + { "This value should be set to 0", "s5066dts.eow.unrec_type.response", FT_UINT8, BASE_DEC, + NULL, 0xE0, NULL, HFILL } + }, + { &hf_s5066dts_eow_unrec_type_reason, + { "Reason", "s5066dts.eow.unrec_type.reason", FT_UINT8, BASE_DEC, NULL, 0x1F, NULL, HFILL } + }, + /* { 4, "CAPABILITY"}, */ + { &hf_s5066dts_eow_capability_adaptive, + { "Adaptive modem parameters capable", "s5066dts.eow.capability.adaptive", FT_BOOLEAN, 8, NULL, 0x80, NULL, HFILL } + }, + { &hf_s5066dts_eow_capability_stanag_4529, + { "STANAG 4529 available", "s5066dts.eow.capability.stanag_4529", FT_BOOLEAN, 8, NULL, 0x40, NULL, HFILL } + }, + { &hf_s5066dts_eow_capability_mil_std_188_110a, + { "MIL-STD-188-110A available", "s5066dts.eow.capability.mil_std_188_110a", FT_BOOLEAN, 8, NULL, 0x20, NULL, HFILL } + }, + { &hf_s5066dts_eow_capability_extended, + { "Extended data rate available", "s5066dts.eow.capability.extended", FT_BOOLEAN, 8, NULL, 0x10, NULL, HFILL } + }, + { &hf_s5066dts_eow_capability_full_duplex, + { "Full duplex supported", "s5066dts.eow.capability.full_duplex", FT_BOOLEAN, 8, NULL, 0x08, NULL, HFILL } + }, + { &hf_s5066dts_eow_capability_split_frequency, + { "Split frequency supported", "s5066dts.eow.capability.split_frequency", FT_BOOLEAN, 8, NULL, 0x04, NULL, HFILL } + }, + { &hf_s5066dts_eow_capability_non_arcs_ale, + { "Non-ARCS ALE capable", "s5066dts.eow.capability.non_arcs_ale", FT_BOOLEAN, 8, NULL, 0x02, NULL, HFILL } + }, + { &hf_s5066dts_eow_capability_arcs, + { "ARCS capable", "s5066dts.eow.capability.arcs", FT_BOOLEAN, 8, NULL, 0x01, NULL, HFILL } + }, + /* { 5, "ALM_REQUEST"}, */ + { &hf_s5066dts_eow_alm_request_data_rate, + { "Data Rate", "s5066dts.eow.alm_request.data_rate", FT_UINT8, BASE_DEC, + VALS(s5066dts_eow_data_rate), 0xF0, NULL, HFILL } + }, + { &hf_s5066dts_eow_alm_request_interleaving, + { "Interleaver parameter", "s5066dts.eow.alm_request.interleaving", FT_UINT8, BASE_DEC, + VALS(s5066dts_eow_interleaving), 0x0C, NULL, HFILL } + }, + { &hf_s5066dts_eow_alm_request_others, + { "Other parameters", "s5066dts.eow.alm_request.others", FT_UINT8, BASE_DEC, + VALS(s5066dts_eow_others), 0x03, NULL, HFILL } + }, + /* { 6, "ALM_RESPONSE"}, */ + { &hf_s5066dts_eow_alm_response_response, + { "Response for DRC", "s5066dts.eow.alm_response.response", FT_UINT8, BASE_DEC, + VALS(s5066dts_eow_response), 0xE0, NULL, HFILL } + }, + { &hf_s5066dts_eow_alm_response_reason, + { "Reason", "s5066dts.eow.alm_response.reason", FT_UINT8, BASE_DEC, VALS(s5066dts_alm_reason), 0x1F, NULL, HFILL } + }, + /* { 7, "HDR_DRC_REQUEST"}, */ + { &hf_s5066dts_eow_hdr_drc_request_waveform, + { "Modem waveform", "s5066dts.eow.hdr_drc_request.waveform", FT_UINT8, BASE_DEC, + VALS(s5066dts_eow_waveform), 0xF8, NULL, HFILL } + }, + { &hf_s5066dts_eow_hdr_drc_request_num_channels, + { "Number of channels", "s5066dts.eow.hdr_drc_request.num_channels", FT_UINT8, BASE_DEC, NULL, 0x07, NULL, HFILL } + }, + { &hf_s5066dts_eow_hdr_drc_request_data_rate, + { "Requested data rate for each channel", "s5066dts.eow.hdr_drc_request.data_rate", + FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + { &hf_s5066dts_eow_hdr_drc_request_interleaver_length, + { "Interleaver length for each channel", "s5066dts.eow.hdr_drc_request.interleaver_length", + FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + /* { 15, "HFTRP FRAME CONTROL"}, */ + { &hf_s5066dts_eow_hftrp_hftrp_token, + { "HFTRP Token Type", "s5066dts.eow.hftrp.token_type", FT_UINT8, BASE_DEC, NULL, 0x00, NULL, HFILL } + }, + /* { 0, "DATA_ONLY"}, */ + { &hf_s5066dts_data_only_cpdu_start, + { "C_PDU Start", "s5066dts.data_only.cpdu_start", FT_BOOLEAN, 8, NULL, 0x80, NULL, HFILL } + }, + { &hf_s5066dts_data_only_cpdu_end, + { "C_PDU End", "s5066dts.data_only.cpdu_end", FT_BOOLEAN, 8, NULL, 0x40, NULL, HFILL } + }, + { &hf_s5066dts_data_only_deliver_in_order, + { "C_PDU Deliver-in-Order", "s5066dts.data_only.deliver_in_order", FT_BOOLEAN, 8, NULL, 0x20, NULL, HFILL } + }, + { &hf_s5066dts_data_only_drop_cpdu, + { "Drop C_PDU", "s5066dts.data_only.drop_cpdu", FT_BOOLEAN, 8, NULL, 0x10, NULL, HFILL } + }, + { &hf_s5066dts_data_only_tx_win_uwe, + { "TX WIN UWE", "s5066dts.data_only.tx_win_uwe", FT_BOOLEAN, 8, NULL, 0x08, NULL, HFILL } + }, + { &hf_s5066dts_data_only_tx_win_lwe, + { "TX WIN LWE", "s5066dts.data_only.tx_win_lwe", FT_BOOLEAN, 8, NULL, 0x04, NULL, HFILL } + }, + { &hf_s5066dts_data_only_segmented_cpdu_size, + { "Size of segmented C_PDU", "s5066dts.data_only.segmented_cpdu_size", FT_UINT16, BASE_DEC, + NULL, 0x03FF, NULL, HFILL } + }, + { &hf_s5066dts_data_only_transmit_sequence_number, + { "TX Frame Sequence Number", "s5066dts.data_only.transmit_sequence_number", FT_UINT8, BASE_DEC, + NULL, 0x0, NULL, HFILL } + }, + /* { 1, "ACK_ONLY"}, */ + { &hf_s5066dts_ack_only_rx_lwe, + { "RX LWE", "s5066dts.ack_only.rx_lwe", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + { &hf_s5066dts_ack_only_acks, + { "Selective ACK", "s5066dts.ack_only.acks", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + /* { 2, "DATA_ACK"}, */ + { &hf_s5066dts_data_ack_cpdu_start, + { "C_PDU Start", "s5066dts.data_ack.cpdu_start", FT_BOOLEAN, 8, NULL, 0x80, NULL, HFILL } + }, + { &hf_s5066dts_data_ack_cpdu_end, + { "C_PDU End", "s5066dts.data_ack.cpdu_end", FT_BOOLEAN, 8, NULL, 0x40, NULL, HFILL } + }, + { &hf_s5066dts_data_ack_deliver_in_order, + { "C_PDU Deliver-in-Order", "s5066dts.data_ack.deliver_in_order", FT_BOOLEAN, 8, NULL, 0x20, NULL, HFILL } + }, + { &hf_s5066dts_data_ack_drop_cpdu, + { "Drop C_PDU", "s5066dts.data_ack.drop_cpdu", FT_BOOLEAN, 8, NULL, 0x10, NULL, HFILL } + }, + { &hf_s5066dts_data_ack_tx_win_uwe, + { "TX WIN UWE", "s5066dts.data_ack.tx_win_uwe", FT_BOOLEAN, 8, NULL, 0x08, NULL, HFILL } + }, + { &hf_s5066dts_data_ack_tx_win_lwe, + { "TX WIN LWE", "s5066dts.data_ack.tx_win_lwe", FT_BOOLEAN, 8, NULL, 0x04, NULL, HFILL } + }, + { &hf_s5066dts_data_ack_segmented_cpdu_size, + { "Size of segmented C_PDU", "s5066dts.data_ack.segmented_cpdu_size", FT_UINT16, BASE_DEC, + NULL, 0x03FF, NULL, HFILL } + }, + { &hf_s5066dts_data_ack_transmit_sequence_number, + { "TX frame sequence number", "s5066dts.data_ack.transmit_sequence_number", FT_UINT8, BASE_DEC, + NULL, 0x0, NULL, HFILL } + }, + { &hf_s5066dts_data_ack_rx_lwe, + { "RX LWE", "s5066dts.data_ack.rx_lwe", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + { &hf_s5066dts_data_ack_acks, + { "Selective ACK", "s5066dts.data_ack.acks", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + /* { 3, "RESET_WIN_RESYNC"}, */ + { &hf_s5066dts_reset_win_resync_unused, + { "Unused", "s5066dts.reset_win_resync.unused", FT_UINT8, BASE_HEX, NULL, 0xF0, NULL, HFILL } + }, + { &hf_s5066dts_reset_win_resync_full_reset_command, + { "Full reset command", "s5066dts.reset_win_resync.full_reset", FT_BOOLEAN, 8, NULL, 0x08, NULL, HFILL } + }, + { &hf_s5066dts_reset_win_resync_reset_tx_win_rqst, + { "Reset TX-WIN request", "s5066dts.reset_win_resync.reset_tx_win", FT_BOOLEAN, 8, NULL, 0x04, NULL, HFILL } + }, + { &hf_s5066dts_reset_win_resync_reset_rx_win_cmnd, + { "Reset RX-WIN command", "s5066dts.reset_win_resync.reset_rx_win", FT_BOOLEAN, 8, NULL, 0x02, NULL, HFILL } + }, + { &hf_s5066dts_reset_win_resync_reset_ack, + { "Reset acknowledgment", "s5066dts.reset_win_resync.reset_ack", FT_BOOLEAN, 8, NULL, 0x01, NULL, HFILL } + }, + { &hf_s5066dts_reset_win_resync_new_rx_lwe, + { "New receiver ARQ RX-LWE", "s5066dts.reset_win_resync.new_rx_lwe", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + { &hf_s5066dts_reset_win_resync_reset_frame_id_number, + { "Reset frame ID number", "s5066dts.reset_win_resync.reset_frame_id", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + /* { 4, "EXP_DATA_ONLY"}, */ + { &hf_s5066dts_exp_data_only_cpdu_start, + { "C_PDU Start", "s5066dts.exp_data_only.cpdu_start", FT_BOOLEAN, 8, NULL, 0x80, NULL, HFILL } + }, + { &hf_s5066dts_exp_data_only_cpdu_end, + { "C_PDU End", "s5066dts.exp_data_only.cpdu_end", FT_BOOLEAN, 8, NULL, 0x40, NULL, HFILL } + }, + { &hf_s5066dts_exp_data_only_cpdu_id, + { "Segmented C_PDU ID", "s5066dts.exp_data_only.cpdu_id", FT_UINT8, BASE_DEC, NULL, 0x3C, NULL, HFILL } + }, + { &hf_s5066dts_exp_data_only_segmented_cpdu_size, + { "Size of segmented C_PDU", "s5066dts.exp_data_only.segmented_cpdu_size", FT_UINT16, BASE_DEC, NULL, 0x03FF, NULL, HFILL } + }, + { &hf_s5066dts_exp_data_only_transmit_sequence_number, + { "TX frame sequence number", "s5066dts.exp_data_only.transmit_sequence_number", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + /* { 5, "EXP_ACK_ONLY"}, */ + { &hf_s5066dts_exp_ack_only_rx_lwe, + { "RX LWE", "s5066dts.exp_ack_only.rx_lwe", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + { &hf_s5066dts_exp_ack_only_acks, + { "Selective ACK", "s5066dts.exp_ack_only.acks", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + /* { 6, "MANAGEMENT"}, */ + { &hf_s5066dts_management_unused, + { "Unused", "s5066dts.management.unused", FT_UINT8, BASE_HEX, NULL, 0xF8, NULL, HFILL } + }, + { &hf_s5066dts_management_extended_message_flag, + { "Extended message flag", "s5066dts.management.extended_message_flag", FT_BOOLEAN, 8, NULL, 0x04, NULL, HFILL } + }, + { &hf_s5066dts_management_message, + { "Valid message", "s5066dts.management.message", FT_BOOLEAN, 8, NULL, 0x02, NULL, HFILL } + }, + { &hf_s5066dts_management_ack, + { "Acknowledgment", "s5066dts.management.ack", FT_BOOLEAN, 8, NULL, 0x01, NULL, HFILL } + }, + { &hf_s5066dts_management_management_frame_id, + { "Management frame ID number", "s5066dts.management.management_frame_id", FT_UINT8, BASE_DEC, + NULL, 0x0, NULL, HFILL } + }, + { &hf_s5066dts_management_extended_message, + { "Extended management message", "s5066dts.management.extended_message", FT_BYTES, BASE_NONE, + NULL, 0x0, NULL, HFILL } + }, + { &hf_s5066dts_management_extended_message_hftrp_payload_size, + { "Payload Size", "s5066dts.management.extended_message.reserved", FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL } + }, + { &hf_s5066dts_management_extended_message_hftrp_ra, + { "Ring Address", "s5066dts.management.extended_message.ring_address", FT_IPv4, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_s5066dts_management_extended_message_hftrp_seq_id, + { "Sequence ID", "s5066dts.management.extended_message.sequence_id", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + { &hf_s5066dts_management_extended_message_hftrp_gen_seq_id, + { "Generation Sequence ID", "s5066dts.management.extended_message.generation_sequence_id", + FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + { &hf_s5066dts_management_extended_message_hftrp_new_successor_id, + { "New Successor ID", "s5066dts.management.extended_message.new_successor_id", FT_UINT32, BASE_DEC, + NULL, 0x0, NULL, HFILL } + }, + { &hf_s5066dts_management_extended_message_hftrp_number_of_nodes, + { "Number of Nodes", "s5066dts.management.extended_message.number_of_nodes", FT_UINT16, BASE_DEC, + NULL, 0x0, NULL, HFILL } + }, + /* { 7, "NON_ARQ_DATA"}, */ + { &hf_s5066dts_non_arq_data_cpdu_id_1, + { "C_PDU ID number (field 1)", "s5066dts.non_arq_data.cpdu_id_1", FT_UINT8, BASE_DEC, NULL, 0xF0, NULL, HFILL } + }, + { &hf_s5066dts_non_arq_data_deliver_in_order, + { "C_PDU Deliver-in-Order", "s5066dts.non_arq_data.deliver_in_order", FT_BOOLEAN, 8, NULL, 0x08, NULL, HFILL } + }, + { &hf_s5066dts_non_arq_data_group_address, + { "Group Address", "s5066dts.non_arq_data.group_address", FT_BOOLEAN, 8, NULL, 0x04, NULL, HFILL } + }, + { &hf_s5066dts_non_arq_data_cpdu_id_2, + { "C_PDU ID number (field 2)", "s5066dts.non_arq_data.cpdu_id_2", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + { &hf_s5066dts_non_arq_data_cpdu_size, + { "C_PDU size", "s5066dts.non_arq_data.cpdu_size", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + { &hf_s5066dts_non_arq_data_cpdu_segment_offset, + { "Offset of segmented C_PDU", "s5066dts.non_arq_data.cpdu_segment_offset", FT_UINT16, BASE_DEC, + NULL, 0x0, NULL, HFILL } + }, + { &hf_s5066dts_non_arq_data_cpdu_reception_window, + { "C_PDU reception window", "s5066dts.non_arq_data.cpdu_reception_window", FT_UINT16, BASE_DEC, + NULL, 0x0, NULL, HFILL } + }, + { &hf_s5066dts_non_arq_data_segmented_cpdu_size, + { "Size of segmented C_PDU", "s5066dts.non_arq_data.segmented_cpdu_size", FT_UINT16, BASE_DEC, + NULL, 0x03FF, NULL, HFILL } + }, + /* { 8, "EXP_NON_ARQ_DATA"}, */ + { &hf_s5066dts_exp_non_arq_data_cpdu_id_1, + { "C_PDU ID number (field 1)", "s5066dts.exp_non_arq_data.cpdu_id_1", FT_UINT8, BASE_DEC, NULL, 0xF0, NULL, HFILL } + }, + { &hf_s5066dts_exp_non_arq_data_deliver_in_order, + { "C_PDU Deliver-in-Order", "s5066dts.exp_non_arq_data.deliver_in_order", FT_BOOLEAN, 8, NULL, 0x08, NULL, HFILL } + }, + { &hf_s5066dts_exp_non_arq_data_group_address, + { "Group Address", "s5066dts.exp_non_arq_data.group_address", FT_BOOLEAN, 8, NULL, 0x04, NULL, HFILL } + }, + { &hf_s5066dts_exp_non_arq_data_cpdu_id_2, + { "C_PDU ID number (field 2)", "s5066dts.exp_non_arq_data.cpdu_id_2", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + { &hf_s5066dts_exp_non_arq_data_cpdu_size, + { "C_PDU size", "s5066dts.exp_non_arq_data.cpdu_size", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + { &hf_s5066dts_exp_non_arq_data_cpdu_segment_offset, + { "Offset of segmented C_PDU", "s5066dts.exp_non_arq_data.cpdu_segment_offset", FT_UINT16, BASE_DEC, + NULL, 0x0, NULL, HFILL } + }, + { &hf_s5066dts_exp_non_arq_data_cpdu_reception_window, + { "C_PDU reception window", "s5066dts.exp_non_arq_data.cpdu_reception_window", FT_UINT16, BASE_DEC, + NULL, 0x0, NULL, HFILL } + }, + { &hf_s5066dts_exp_non_arq_data_segmented_cpdu_size, + { "Size of segmented C_PDU", "s5066dts.exp_non_arq_data.segmented_cpdu_size", FT_UINT16, BASE_DEC, + NULL, 0x03FF, NULL, HFILL } + }, + /* {15, "WARNING"}, */ + { &hf_s5066dts_warning_frame_type, + { "Received frame type", "s5066dts.warning.frame_type", FT_UINT8, BASE_DEC, NULL, 0xF0, NULL, HFILL } + }, + { &hf_s5066dts_warning_reason, + { "Reason warning sent", "s5066dts.warning.reason", FT_UINT8, BASE_DEC, NULL, 0x0F, NULL, HFILL } + }, + }; + + static gint *ett[] = { + &ett_s5066dts, + &ett_s5066dts_eow, + &ett_s5066dts_address, + &ett_s5066dts_pdu, + &ett_s5066dts_hftrp_token, + }; + + /* Setup protocol expert items */ + static ei_register_info ei[] = { + { &ei_s5066dts_eow_hdr_drc_request_invalid, { "s5066dts.eow_hdr_drc_request.invalid", PI_MALFORMED, PI_ERROR, + "High data rate change request can only be made in Management D_PDU", EXPFILL }}, + { &ei_s5066dts_eow_hftrp_invalid, { "s5066dts.eow_hftrp.invalid", PI_MALFORMED, PI_ERROR, + "HFTRP tokens can only be carried with Management D_PDU", EXPFILL }}, + }; + + expert_module_t* expert_s5066dts; + + if (proto_s5066dts == -1) /* do protocol initialization only once */ + { + proto_s5066dts = proto_register_protocol ("STANAG 5066(DTS layer)", "STANAG 5066 DTS", "s5066dts"); + proto_register_field_array(proto_s5066dts, hf, array_length(hf)); + proto_register_subtree_array(ett, array_length(ett)); + expert_s5066dts = expert_register_protocol(proto_s5066dts); + expert_register_field_array(expert_s5066dts, ei, array_length(ei)); + s5066dts_handle = register_dissector(DISSECTOR_NAME ".raw", dissect_s5066dts_raw, proto_s5066dts); + s5066dts_over_tcp_handle = register_dissector(DISSECTOR_NAME, dissect_s5066dts_tcp, proto_s5066dts); + } + + s5066dts_module = prefs_register_protocol(proto_s5066dts, apply_s5066dts_prefs); + + prefs_register_bool_preference(s5066dts_module, "proto_desegment", + "Reassemble STANAG 5066 DPDUs spanning multiple TCP segments", + "Whether the STANAG 5066 DTS Layer dissector should reassemble DPDUs spanning multiple TCP segments", + &config_proto_desegment); +} + +/* Routine that will be called when s5066dts is handing off to the next dissector */ +void proto_reg_handoff_s5066dts(void) +{ + dissector_add_uint("wtap_encap", WTAP_ENCAP_STANAG_5066_D_PDU, s5066dts_handle); + dissector_add_for_decode_as_with_preference("tcp.port", s5066dts_over_tcp_handle); + apply_s5066dts_prefs(); +} + +/* + * Editor modelines - https://www.wireshark.org/tools/modelines.html + * + * Local variables: + * c-basic-offset: 4 + * tab-width: 8 + * indent-tabs-mode: nil + * End: + * + * vi: set shiftwidth=4 tabstop=8 expandtab: + * :indentSize=4:tabSize=8:noTabs=true: + */ |